Anyone know how to stop the Courier font from converting two consecutive dashes into an em-dash? I want to keep the two dashes as they are, but I can't find a place to tell Nisus to leave the two dashes alone. This doesn't happen in any other fonts I use. Only in Courier. Help!

Could you send us an example document using the menu Help > Send Feedback? It may not help us discover the cause of the unwanted change, but at least I'll be sure about what exactly we're dealing with.